<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>列表排序</title>
     <!-- 引入vue -->
     <script type="text/javascript" src="../js/vue.js"></script>
</head>
<body>
 
    <div id="root">
         <!-- 遍历数组 -->
        <h2>人员列表</h2>
        <input type="text" placeholder="请输入名字" v-model="keyWord">
        <button @click="sortType = 2">年龄升序</button>
        <button @click="sortType = 1">年龄降序</button>
        <button @click="sortType = 0">原顺序</button>
        <ul>
        <!-- v-for可以遍历 -->
            <li v-for="(p,index) of filPerson" :key="p.id">
                {{p.name}}-{{p.age}}-{{p.sex}}
            </li>
        </ul>
       
    </div>
    
</body>
<script type="text/javascript">
    Vue.config.productionTip = false //阻止vue在启动生成生产提示。
    //用计算属性实现
    new Vue({
        el:'#root',
        data:{
            sortType:0,
            keyWord:'',
            personArr:[
                {id:'001',name:'马冬梅',age:34,sex:'女'},
                {id:'002',name:'周冬梅',age:80,sex:'女'},
                {id:'003',name:'周杰伦',age:40,sex:'男'},
                {id:'004',name:'温兆伦',age:23,sex:'男'},
            ],
            
        },
       computed:{
          filPerson(){
            const arr =  this.personArr.filter((p)=>{
                return p.name.indexOf(this.keyWord) !== -1
            })
            //判断是否要进行排序
            if(this.sortType){
                arr.sort((p1,p2)=>{
                   return this.sortType ===1 ? p2.age-p1.age : p1.age-p2.age
                })
            }
            return arr
          }
       }
    })
    </script>
</html>